[PATCH V2] xfs_quota: don't try to report quotas which aren't there.

[Eric Sandeen <sandeen@xxxxxxxxxx>]

Red Hat bug #669333 - xfs_quota generates "XFS_GETQUOTA: No such process" errors
shows that if you do this for a filesystem w/o group quota enabled:

# xfs_quota -x -c ' report -h ' /xfsquota"

You'll get this output:

User quota on /xfsquota (/dev/vdb)
                        Blocks              
User ID      Used   Soft   Hard Warn/Grace   
---------- --------------------------------- 
root            0      0      0  00 [------]

XFS_GETQUOTA: No such process
XFS_GETQUOTA: No such process
...

because we're calling XFS_GETQUOTA for types which aren't enabled.

The below patch fixes it for me, just ignoring types that aren't
there.  Thanks to Arkadiusz Miskiewicz for pointing out the simpler
fix.  :)

Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---

diff --git a/quota/report.c b/quota/report.c
index 0e005c3..7d391c6 100644
--- a/quota/report.c
+++ b/quota/report.c
@@ -302,7 +302,7 @@ report_mount(
 	int		count;
 
 	if (xfsquotactl(XFS_GETQUOTA, dev, type, id, (void *)&d) < 0) {
-		if (errno != ENOENT && errno != ENOSYS)
+		if (errno != ENOENT && errno != ENOSYS && errno != ESRCH)
 			perror("XFS_GETQUOTA");
 		return 0;
 	}